"Issued April 6, 1910."

Conducted in cooperation with the Bureau of Entomology

At head of title: U.S. Department of Agriculture, Bureau of Chemistry

Introduction. pp. 5

1. Composition of lead arsenates found on the market : Scope of the investigation -- Methods of analysis -- Results of analyses -- Discussion. pp. 6

2. "Home-made" lead arsenate and the chemicals entering into its manufacture : Introduction -- Methods of analysis -- Composition of lead arsenate -- Composition of lead nitrate -- Composition of sodium arsenate -- Theoretical compostion of lead arsenate -- Published formulas -- Directions for the preparing lead arsenate -- Comparative merits of lead arsenate and lead nitrate -- Physical properties of lead arsenate. pp. 12

3. Action of lead arsenate on foliage : General discussion -- Experimental work of 1907 -- Preparation of the lead arsenate used -- Experimental work of 1907 -- Experimental work of 1908 -- Summary of results for the two years' experiment -- General discussion of problems involved in the investigation -- Conclusions. pp. 24

List of tables. pp. 50

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